This is a used Aalborg GFC77 mass flow controller designed for measuring and controlling air flow. It has a flow range of 0-20 SCFM. The item is sold in used condition, and the listing includes free shipping. This type of instrument is typically used in laboratory, industrial, or process control settings where precise gas flow management is required. It would suit engineers, technicians, or researchers needing reliable flow measurement. As this is a used item, buyers should review the listing carefully for any specific details about its current state or included accessories. Check the listing for full details on specifications and compatibility. AALBORG Air Mass Flow Controller Meter Flow Range 0-20 Model GFC77 SCFM. Condition: Used. Listed at 967.18 USD. The AALBORG Air Mass Flow Controller Meter is a high-quality flow meter designed for measuring air flow in various industrial applications. With a flow range of 0-20 SCFM, this model GFC77 offers accurate and reliable control over air mass flow. The AALBORG brand ensures durability and performance in the field of hydraulics, pneumatics, pumps, and plumbing systems. Ideal for businesses seeking precise measurement and regulation of air flow in their operations, this mass flow meter is a valuable tool for achieving efficiency and accuracy in industrial processes.